#include "widget.h"
#include "ui_widget.h"

#include<QNetworkDatagram>
const QString& SERVER_IP="127.0.0.1";
const quint16 SERVER_PORT=8080;
Widget::Widget(QWidget *parent)
    : QWidget(parent)
    , ui(new Ui::Widget)
{
    ui->setupUi(this);
    socket=new QUdpSocket(this);
    connect(socket,&QUdpSocket::readyRead,this,[=](){
        const QNetworkDatagram responseDatagram=socket->receiveDatagram();
        QString response=responseDatagram.data();
        ui->listWidget->addItem("服务端说："+response);
    });
}

Widget::~Widget()
{
    delete ui;
}


void Widget::on_pushButton_clicked()
{
    //获取到输入框的内容
    const QString&text=ui->lineEdit->text();
    //构造请求数据
    QNetworkDatagram requestDatagram(text.toUtf8(),QHostAddress(SERVER_IP),SERVER_PORT);
    //发送请求
    socket->writeDatagram(requestDatagram);
    //消息添加到列表框中
    ui->listWidget->addItem("客户端说:"+text);
    //清空输入框
    ui->lineEdit->setText("");
}
